What are some potential pitfalls when using arrays in PHP to store data from a MySQL database?

One potential pitfall when using arrays in PHP to store data from a MySQL database is the risk of memory exhaustion if the array becomes too large. To prevent this, you can limit the number of rows fetched from the database at a time and process them in batches. 

// Limit the number of rows fetched from the database at a time
$limit = 1000;
$offset = 0;

while (true) {
    $result = $mysqli->query("SELECT * FROM table LIMIT $limit OFFSET $offset");
    
    if ($result->num_rows == 0) {
        break;
    }
    
    while ($row = $result->fetch_assoc()) {
        // Process each row here
    }
    
    $offset += $limit;
}

Keywords

arrays PHP MySQL data storage pitfalls

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